Product description: USB-UART converter CP2104 - Polol 1308
The module based on CP2104 allows for data conversion between USB - UART standards. Using the converter, data can be exchanged between a PC equipped with a USB port and a microcontroller chip that supports a popular serial interface. Additionally, the chip has digital general purpose leads (GPIO) as goldpin connectors - 2.54 mm raster. CP2104 is compatible with popular FT232, so it can be used as programmer for Arduino.
Default operating voltage is 3.45V, however the Polol module tolerates higher values, including 5V signals. In the operating system, the adapter is seen as virtual COM port, which means it can be used with any terminal or program supporting serial standard - RS232. The manufacturer provides drivers for the systems: Windows XP, Windows Vista, Windows 7, Windows 8, Linux, and Mac OS X.
Queries .
| Pin | Type | Function |
|---|---|---|
| VDD | Power | 3.45 V voltage output |
| VBUS | Power | USB bus voltage (5 V) |
| GND | Power | Mass |
| RST | In | System reset |
| TX | Out | UART transmitter |
| RX | In | UART Receiver |
| CTS | In | "Clear to send" input |
| RTS | Out | "Ready to send" output |
| DSR | In | "Data set ready" input (active in low state) |
| DTR | Out | "Data terminal ready" output (active in low state) |
| DCD | In | "Data carrier detect" input (active in low state) |
| RI | In | "Ring indicator" input (active in low state) |
| SUSPEND | Out | High state when the USB bus is busy |
| SUSPEND | Out | Low state when USB bus is busy (output connected to green LED) |
| GPIO.0 | I/O | Digital inputs / outputs, general purpose (GPIO) |
| GPIO.1 | ||
| GPIO.2 | ||
| GPIO.3 |
The outputs are popular goldpin connectors (2.54 mm raster), which enable connection of the sensor with wires or direct connection to the contact board.
GPIO leads
The module has four digital GPIO outputs, which can be controlled via a one-time programming ROM. For more details see documentation.
Change default operating voltage
CP2104 allows you to select the voltage with which the outputs work. The default setting is 3.45 V. To change this value to a lower one, solder the jumper at the bottom of the module. Other, lower voltage up to 1.8 V can be connected to VIO output.
Specification of CP2104 USB-UART converter
- The tension of work: 3.45 V ( 5 V tolerance)
- Interface: ISB 2.0
- Interface: microUSB type B
- Transmission speed: 300 bps to 2 Mbps
- Current consumption: up to 25 mA
- Dimensions: 15.3 x 24.2 mm
- Included: module and goldpin connectors.
Details in CP2102 documentation.
In our offer also microUSB cable.
Useful links |
